Los Altos leans Democratic by roughly 24 points: about 62% of voters vote Democratic and 38% Republican.
About 79% of adults in Los Altos typically vote, above the U.S. average of about 62%. Among adults in Los Altos, ~49% vote Democratic, ~30% Republican, and ~21% don't vote. The map below shows estimated turnout by block group.
How Los Altos compares
Among neighborhoods within 5 miles, Los Altos leans more Democratic than 3 of 18 neighbors.
Politically, Los Altos sits close to the rest of California.
Politics vary noticeably by block within Los Altos. The south side is the most Democratic-leaning (D+31) and the northeast side is the least Democratic-leaning (D+14), a spread of about 17 points.
Why Los Altos leans the way it does
This analysis examined 14,881 data points per neighborhood to find what predicts political lean and turnout. The items below are a few correlations that stood out for Los Altos, not a ranked or complete list of what matters most.
Dense areas vote Democratic. More than 99% of residents in Los Altos live in densely developed areas, about 64 points above the U.S. average of 36%.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Los Altos, Long Beach, CA sits in the top tenth nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in Los Altos looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Los Altos is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 74%, about 14 points above the U.S. average of 60%. Learn more about the findings and methodology on the political spectrum map.
Nearby Neighborhoods
- Park Estates, Long Beach, CA D+32
- The Plaza, Long Beach, CA D+18
- State College Area, Long Beach, CA D+32
- City College Area, Long Beach, CA D+18
- Circle Area, Long Beach, CA D+40
- East Side, Long Beach, CA D+52
- Naples-Marina Area, Long Beach, CA D+27
- Belmont Shore, Long Beach, CA D+48
- El Dorado Park, Long Beach, CA D+23
- Belmont Heights, Long Beach, CA D+56
Neighborhoods with Similar Populations
- Central, Fresno, CA D+30
- West Pullman, Chicago, IL D+82
- Fremont, Seattle, WA D+79
- Mercury Central, Hampton, VA D+47
- Spring Garden, Philadelphia, PA D+71
- North Plymouth, Plymouth, MA D+16
- Springfield-Belmont, Newark, NJ D+77
- Stadium-Armory, Washington, DC D+85
- Magnolia Center, Riverside, CA D+8
- Ponderosa Park, Sunnyvale, CA D+34
Sources and methodology
Precinct-level voting records used to fit the model come from California Secretary of State, Elections, distributed by the Voting and Election Science Team. Demographic inputs come from the U.S. Census Bureau (ACS 5-year estimates and the 2020 Decennial Census). Health and environmental inputs come from the CDC (PLACES and the Environmental Justice Index). Land cover comes from the USGS and EPA. Election-day and lead-up weather come from PRISM 4km daily grids and the NOAA Global Historical Climatology Network. Mail-voting and election-administration patterns come from the MIT Election Lab's Survey of the Performance of American Elections. Block-group crime detail comes from CrimeGrade. Internet data and modeling support provided by ISPreports.org.
Modeling and analysis by the BestNeighborhood data science team. Full methodology and findings: political spectrum map.
Methodology reviewed by the BestNeighborhood data team. Last updated May 2026.